A/Prof David van der Poorten
Dr Roslyn Vongsuvanh
  Prof Golo Ahlenstiel
Dr Way Siow

Appointments & Enquiries:  (02) 8711 0160

The Stomach

The stomach is a reservoir for food and aids in digestion via mechanical churning and through the production of gastric acid. The stomach is comprised of 5 parts, namely: the cardia, fundus, body, antrum and pylorus. Specialised parietal cells within the stomach make hydrochloric acid (HCL) and Intrinsic Factor (to carry vitamin B12), while other cells produce the hormones such as gastrin to stimulate digestion. Food is churned and broken down within the gastric antrum and then passed through the pylorus into the duodenum, the first part of the small intestine. In general the stomach takes around 90 minutes to empty out half its contents or more following a meal.

 

Common diseases of the stomach include:

  • Gastritis
  • Helicobacter Pylori Infection
  • Peptic Ulcer disease
  • Functional dyspepsia
  • Gastric Cancer
  • Gastroparesis (poor stomach emptying)
  • Gastric varices
  • Irritable bowel syndrome ** (all parts of the intestine can be involved)